<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div id="app">
    <anchored-heading :level="1" href="#hello-wold">Hello world!</anchored-heading>
    <anchored-heading :level="2" href="#hello-wold">Hello world!</anchored-heading>
    <anchored-heading :level="3" href="#hello-wold">Hello world!</anchored-heading>
</div>
</body>
<script src="../../js/vue.js"></script>
<script type="text/javascript">
    Vue.component('anchored-heading', {
        render: function (createElement) {
            return createElement(
                'h' + this.level,   // 标签名称

                [createElement('a', {
                    attrs: {
                        href: this.href
                    }
                },this.$slots.default)]

            )
        },
        props: {
            level: {
                type: Number,
                required: true
            },
            href: {
                type: String,
                default: ''
            }
        }
    })
    var vm = new Vue({
        el: '#app',
        data() {
            return {}
        }
    })
</script>
</html>
